Chapter 5

Geological Magazine Decade 2 volume 1 1874 pages 423-424. The Glacial Period, Nature volume 10 1874 pages 25-26. Niagara: Glacial and Post-Glacial Phenomena, Journal of Science volume 5 1875 pages 135-156. The Drift of Devon and Cornwall: its Origin, Correlation with that of the South-West of England, and Place in the Glacial Series, Geological Society Quarterly Journal